芳亚甲基丙二腈和4-羟基喹啉-2-酮反应的研究

以芳亚甲基丙二腈和4-羟基喹啉-2-酮为原料,在六氢吡啶催化下以乙醇为溶剂,80℃合成了一系列新的2-氨基-3-氰基-4-芳基5,6-二氢化-4H-吡喃并[3,2-c]喹啉-5-酮衍生物,反应条件温和,产率较高,并通过单晶X射线衍射分析确证产物的结构.     

Synthesis and Crystal Structure of 2-Morpholinylthioformyl-2-phenyl-4-morpholinyl-5-phenyl-1,3-dithiole

1　ＩＮＴＲＯＤＵＣＴＩＯＮα Ｔｈｉｏｃａｒｂｏｎｙｌｔｈｉｏｆｏｒｍａｍｉｄｅｓｗｅｒｅｓｙｎｔｈｅｓｉｚｅｄｉｎ 1 980 [1～ 2 ],ｈｏｗｅｖｅｒ,ｔｈｅｒｅｗａｓｎｏｒｅｐｏｒｔｏｎｔｈｅｉｒｐｒｏｐｅｒｔｉｅｓａｎｄｒｅａｃｔｉｏｎａｃｔｉｖｉｔｉｅｓ[3].Ｗｅｒｅｐｏｒｔｅｄｔｈｅｒｅａｃｔｉｏｎｏｆα ｔｈｉｏｃａｒｂｏｎｙｌｔｈｉｏｆｏｒｍａｍｉｄｅｓｐｒｅｖｉｏｕｓｌｙ[4 ].Ｈｅｒｅ ,ｗｅｒｅｐｏｒｔｔｈｅｓｙｎｔｈｅｓｉｓｏｆ 2 ｍｏｒｐｈｏｌｉｎｙｌｔｈｉｏｆｏｒｍｙｌ 2 ｐｈｅｎｙ…     

Synthesis and Crystal Structure of 5,5-Dimethyl-2-(4-chlorophenyl)(3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one-2-yl)methyl-3-(4-methoxyphenylamino)-2-cyclohexene-1-one

The title compound 5,5-dimethyl-2-(4-chlorophenyl)(3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one-2-yl)methyl-3-(4-methoxyphenylamino)-2-cyclohexen-1-one has been synthesized,and its crystal structure was characterized by X-ray single-crystal diffraction. The crystal belongs to monoclinic,space group P21/c with a=9.4193(13),b=26.915(4),c=21.188(3),β =101.906(3)°,V =5256.2(13)3,Z =4,C60H68Cl2N2O8,Mr=1016.06,Dc=1.284 g/cm3,F(000)=2160,λ(MoKα)=0.71073,μ=0.182 mm–1,R=0.0530 and wR=0.1131 for 4128 observed reflections (I>2σ(I)). X-ray analysis reveals that there are two independent molecules in the unit and the cyclohexenone rings adopt different conformations. In addition,there are four intramolecular hydrogen bonds in the title molecule.     

4-(4-溴苯基)-9-(4-氯苯基)-2,3,6,7-四氢-6,6-甲基-4H-环戊并[b]喹啉-1,8(5H,9H)-二酮的合成和晶体结构

标题化合物是由4-氯苯甲醛、5,5-二甲基-3-(4-溴苯基)氨基-2-环己烯-1-酮和1,3-环戊二酮在离子液体中反应制得,并通过IR,1 HNMR,HRMS和元素分析加以表征.结构通过单晶X射线衍射分析确定,其晶体属于单斜晶系,空间群P2(1)/c,a=1.091 8(2)nm,b=3.325 5(7)nm,c=1.270 6(3)nm,β=96.89(3)°,Mr=993.63,V=4.579 7(16)nm3,Dc=1.441g/cm3,Z=4,μ(Mo Kα)=1.935cm-1,F(000)=2 032.晶体结构用直接法解出,使用全矩阵最小二乘法对原子参数进行修正,最后的偏离因子R1=0.098 3,wR2=0.167 5.     

α—硫羰基硫代甲酰胺的合成

以α－硫羰基硫代甲酰胺为原料通过Lawesson试剂硫代合成了系列的α－硫羰基硫代甲酰胺，并通过IR，^1HNMR证实其结构。     

离子液体中碘催化2-芳基-1H-苯并咪唑衍生物的合成

碘催化下,以芳醛、邻苯二胺为原料,在离子液体[BMIm]Br中选择性反应得到了一系列2-芳基-1 H-苯并咪唑衍生物.该方法具有中性反应条件、产率较高和环境友好等优点.其中化合物3i的结构通过X单晶衍射分析加以证实.     

9，9-二甲基-12-（4-氯苯基）-8，9，10，12-四氢化-9H-苯并[a]吖啶-11-酮的合成和晶体结构

以N-(4-氯苯亚甲基)-2-萘胺和5,5-二甲基-1,3-环己二酮为原料,水作溶剂,在氯化三乙基苄基铵(TEBAC)催化下反应,得到标题化合物C25H22Cl2NO.结构通过单晶X射线衍射分析确定,其晶体属于单斜晶系,空间群P21/c,a=1.042 42(14)nm,b=1.177 7(2)nm,c=1.617 3(3)nm,β=91.024(5)°,Mr=387.89,V=1.985 1(5)nm3,Dc=1.298 g.cm-3,Z=4,μ(Mo Kα)=0.208 cm-1,F(000)=816.晶体结构用直接法解出,使用全矩阵最小二乘法对原子参数进行修正,最后的偏离因子R=0.057 1,Rw=0.118 6.     

3-甲基-5-氰基-6-氨基-1-苯基-4-(3,4-二甲氧基苯基)-1,4-二氢吡喃[2,3-c]吡唑的合成和晶体结构

标题化合物C22H20N4O3 3是由2-氰基-3-(3,4-二甲氧基苯基)丙烯腈1和3-甲基-1-苯基-2-吡唑-5-酮2在KF-Al2O3催化下在N,N-二甲基甲酰胺(DMF)溶剂中反应而得。结构通过单晶X-射线衍射分析确定,其晶体属于三斜晶系,空间群Pī,a = 9.450(3),b = 10.876(2), c = 11.435(2) ,a = 115.51(1), b = 102.82(1),g = 98.47(2), Mr = 388.42, V = 994.1(3) 3,Dc = 1.298 g/cm3, Z = 2, m (MoKa) = 0.089 mm-1, F(000) = 408。晶体结构用直接法解出,使用全矩阵最小二乘法对原子参数进行修正,最后的偏离因子R = 0.0420,wR = 0.1070。单晶X-射线衍射分析表明平面Ⅰ与平面Ⅱ、平面Ⅲ、平面Ⅳ的夹角分别为102.31、29.24和1.43。平面Ⅱ与平面Ⅲ和平面Ⅳ的夹角分别为73.50和100.91,平面Ⅲ和平面Ⅳ的夹角为27.81, 另外晶体中还存在分子间氢键。     

Novel N,N＇-Diacylhydrazine-Based Colorimetric Receptors for Selective Sensing of Fluoride and Acetate Anions

Three novel and simple N,N＇-diacylhydrazine-based colorimetric receptors have been prepared. The binding properties of the receptors to anions such as F^-, Cl^-, Br^-, AcO^-, HSO4^- and HEPO4^- in acetonitrile solution were examined by UV-Vis spectroscopy methods, which show high sensitivity and selectivity to F^- and AcO^- over other anions. The results indicated that a 1 ： 1 stoichiometry complex was formed between the receptors and the anions, while ^1H NMR titrations confirmed hydrogen binding interaction between the receptors and the anions.     

KF/Al2O3催化下芳醛和4-羟基喹啉-2-酮的反应研究

以芳醛和4-羟基喹啉-2-酮为原料, 在KF/Al₂O₃催化下以乙醇为溶剂, 在80 ℃合成了一系列新的双(4-羟基-2-氧代喹啉-3-基)-芳基甲烷衍生物, 反应条件温和, 产率较高, 并通过IR, ¹H NMR和元素分析确证产物的结构.